A suicide car bomber targeted a convoy of foreign forces in the capital Kabul on Sunday, killing at least four Afghan civilians, including children, and wounding dozens, Afghan security officials said.

The attacker detonated his vehicle in a busy part of western Kabul, said interior ministry spokesman Sediq Sediqqi. Two children and one woman were among the dead, a police statement said, while some 35 others were wounded.

Local TV footage showed at least one ISAF military vehicle was slightly damaged in the attack. A spokesman for the NATO-led force in the country said they were looking into the incident but did not comment on the details.

On Tuesday, a U.S. general was killed and over a dozen others were wounded when an Afghan soldier turned his gun on their delegation. He was the highest ranking U.S. official to be killed in action overseas since the war in Vietnam.